So far, you don’t seem to have much of an argument there:
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”lil E”- ad hominem attack implying your opponent is juvenile.
”real crises”- false dichotomy. (if the border is a problem, then climate change must not be a problem?)
”the new crisis”- weird hypothetical, implying that all crises are made up by the same secret cabal Crush believes in.
”long time horizon”- this one comes closer to being an argument. But you give no reason that real issues cannot have long time horizons.
“mask and covid booster”- utterly and completely off topic. “I disagree with you about issue A, therefore you’re wrong about issue M”.
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And that’s all you offered.
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If you really want to go the extra mile, actually talk about the issue. We’re emitting far more CO2 than plants and algae can process. Over time, this will increase global mean temperatures. Some marginal land will become submerged to simply too hot to inhabit.
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I don’t really care whether you like to call it an “emergency”. That’s just quibbling over semantics. But there is a real issue here and you can do better than to hope that it’s all something the “scientists” made up just because they don’t want you to drive a Suburban.